Evolutionary Implications of Mechanistic Models of TE-Mediated Hybrid Incompatibility.
Evolutionary Implications of Mechanistic Models of TE-Mediated Hybrid Incompatibility.
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DOI：
10.1155/2012/698198
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发表时间：
2012-01-01
期刊：
影响因子：
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通讯作者：
Moyle, Leonie C
中科院分区：
文献类型：
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作者：
Castillo, Dean M;Moyle, Leonie C
植物(尤其是拟南芥)中TE抑制的新模型表明，在杂种中TE的错误调控可能导致杂交无效表达的特定机制。如果是真的，这些模型提出了尚未描述的后果：(1)在不同的受精卵后阶段表现出的杂交问题之间的机械联系(例如，不育和不育)，(2)预测的强度、阶段和不同TE活动的不同谱系之间的隔离方向，以及(3)影响TE动态的物种属性之间的关联(例如，繁殖方式、地理结构)和它们积累不亲和性的速度。在这篇文章中，我们探讨了这些含义，并勾勒出未来的经验方向，以生成评估它们所需的数据。
New models of TE repression in plants (specifically Arabidopsis) have suggested specific mechanisms by which TE misregulation in hybrids might result in the expression of hybrid inviability. If true, these models suggest as yet undescribed consequences for (1) mechanistic connections between hybrid problems expressed at different postzygotic stages (e.g., inviability versus sterility), (2) the predicted strength, stage, and direction of isolation between diverging lineages that differ in TE activity, and (3) the association between species attributes that influence TE dynamics (e.g., mode of reproduction, geographical structure) and the rate at which they could accumulate incompatibilities. In this paper, we explore these implications and outline future empirical directions for generating data necessary to evaluate them.